SDL/src/thread/ngage/SDL_systhread.cpp

/*
  Simple DirectMedia Layer
  Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"

#if SDL_THREAD_NGAGE

/* N-Gage thread management routines for SDL */

#include <e32std.h>

extern "C" {
#undef NULL
#include "SDL_error.h"
#include "SDL_thread.h"
#include "../SDL_systhread.h"
#include "../SDL_thread_c.h"
};

static int object_count;

static int
RunThread(TAny* data)
{
    SDL_RunThread((SDL_Thread*)data);
    return(0);
}

static TInt
NewThread(const TDesC& aName, TAny* aPtr1, TAny* aPtr2)
{
    return ((RThread*)(aPtr1))->Create
        (aName,
         RunThread,
         KDefaultStackSize,
         NULL,
         aPtr2);
}

int
CreateUnique(TInt (*aFunc)(const TDesC& aName, TAny*, TAny*), TAny* aPtr1, TAny* aPtr2)
{
    TBuf<16> name;
    TInt     status = KErrNone;
    do
    {
        object_count++;
        name.Format(_L("SDL_%x"), object_count);
        status = aFunc(name, aPtr1, aPtr2);
    }
    while(status == KErrAlreadyExists);
    return status;
}

int
SDL_SYS_CreateThread(SDL_Thread *thread)
{
    RThread rthread;

    TInt status = CreateUnique(NewThread, &rthread, thread);
    if (status != KErrNone)
    {
        delete(((RThread*)(thread->handle)));
        thread->handle = NULL;
        SDL_SetError("Not enough resources to create thread");
        return(-1);
    }

    rthread.Resume();
    thread->handle = rthread.Handle();
    return(0);
}

void
SDL_SYS_SetupThread(const char *name)
{
    return;
}

SDL_threadID
SDL_ThreadID(void)
{
    RThread   current;
    TThreadId id = current.Id();
    return id;
}

int
SDL_SYS_SetThreadPriority(SDL_ThreadPriority priority)
{
    return (0);
}

void
SDL_SYS_WaitThread(SDL_Thread * thread)
{
    RThread t;
    t.Open(thread->threadid);
    if(t.ExitReason() == EExitPending)
    {
        TRequestStatus status;
        t.Logon(status);
        User::WaitForRequest(status);
    }
    t.Close();
}

void
SDL_SYS_DetachThread(SDL_Thread * thread)
{
    return;
}

#endif /* SDL_THREAD_NGAGE */

/* vim: ts=4 sw=4
 */